Thailand may be a middle income country, but enter one of the capital’s many new, opulent shopping complexes and you’ll think you’ve been transported to New York or Singapore. EmQuartier, Bangkok’s latest retail destination for the well-healed houses such brands as Louis Vuitton, Chanel, Prada, Dior, Tiffany and Cartier as do half a dozen of its predecessors along a six kilometers retail corridor in the city’s downtown.